Drafting board holder



Sept. 16, 1941. M. CHABON DRAFTING BOARD HOLDE R Filed Dec. 10, 1940INVENTOR. m Mar'f/fl ao/vg BY TTORNE Y.

Patented Sept. 16,194]

UNITED STATES PA'IZENT OFFICE DRAFTING BOARD HOLDER 7 Martin Chabon, NewYork, N. Y. Application December 10, 1940, Serial No. 369,419 3 Claims.(Cl. 45-131) This invention relates to drafting-board holders, and hasfor one of its objects the provision of such a holder which is readilyadaptable to be secured to an existing standard work-bench or tablewithout in any way necessitating changes of construction of the saidwork-bench or table. I

Another object of the invention is the provision of such adrafting-board holder which is tiltable for use at any desired angle andwhich when not in use, may be swung down and slid out of the way, underthe table top, so that the work-bench or table may be used for otherpurposes.

A further object of the invention is the provision of such a devicewhich is especially and ideally suited for small school shops wherespace is at a premium, as with the use of this device, the sameclass-room may be used, for instance, for a woodworking class and adrawing class without the necessity of providing both differentfurniture and different rooms for the said classes.

Another object is to producea device of the character described in whichthe maximum simplicity of construction and operation is secured.

Other objects and advantages will appear as the nature of theimprovements is better understood, the invention consistingsubstantially in the novel arrangement and co-relation of parts hereinfully described and illustrated in the accompanying drawing, whereinsimilar reference characters are used to describe'corresponding partsthroughout the several views, and then finally pointed out andspecifically defined and indicated in the appended claims.

The disclosure made the basis of exemplifying the present inventiveconcept suggests a practical embodiment thereof, but the invention isnot to be restricted to the exact details of this disclosure, and thelatter, therefore, is to be unbe a wide one, is

sued for maintaining same in adjusted angular position.

Referring now to the drawing in detail, 5 indicates the top of a tableor work-bench 6, to the underside of which there are secured, by meansof screws or bolts I, a pair of spaced apart slideways 8. slidablysupported in each of the said slideways 8 is a bar or runner 9, to theextreme forward end of which there is pivotally secured, by means of apivot pin or bolt l0, a bifurcated arm II which arm forms a support fora metallic platform 12 having an 'uptumed substantially U-shapedlowerend I3 to provide a rest or support for a drawing-board H. The end edgesof the frame or casement may be reinforced by bars I5 Secured to theunderside of the runners 9 is a cross bar iii to which there may be inturn secured a pair of bearings l1 support at l8 one end of a rod 1 9.The said rod I9 is slidably supported near its other end in a guide 20carried by a cross bar H at the'rear of the drawing-board platform orsupport. One or both of the runners 9 may be provided with an elongatedslot 22 into which extends a pin 23 secured in one of the side walls ofthe slideways 8;

In Fig. 1 the device is shown in drawing position in full lines. When insaid position a thumb-screw 24 is tightened against the rod i9 tomaintain the device in said position; flattened areas 25 on the rod I9insure a tight grip or hold of the thumb-screw 22 against the said rod.

To slide the drawing-board holder out of view under the table top 5, thedrawing board, if it removed from the holder, the

' screw 24 is loosened to permit the device to swing down upon itspivots Ill and ill to assume the derstood from an illustrative, ratherthan a restrictive standpoint.

The inventive idea involved is capable of receiving a variety ofmechanical expressions, one of which, for the purpose of illustration,is shown in the accompanying drawing, in which- Figure 1 is a fragmentalside view of a worktable showing my device as applied thereto, a

portion thereof being partly broken away; Fig. 2

is a top plan view thereof partly broken away;

Fig. 3 is a perspective view of one of the slideways in which the holderis adapted to slide and Fig. 4 is a fragmental side view of theswingable guide rod against which the device is tight- 5 5 dot-and-dashposition (Fig. 1) and is then slid inwardly in the direction of thearrow 26 until the pin 23 comes in contact with the left hand end of theslot 22.

From the foregoing it will be seen that I have provided a drawing boardholder which is simple in construction, that will withstand rough usageby school boys, and which may be secured to the underside of anystandard work-bench or table, said holder being tiltable to any desiredangle for use, and may be slid out of view under the table top when notin use. It will also be understood that instead of drawing-board holderit may be used as a book rest or other similar article.

Having described my invention what I claim which 'pivotally using thedevice as a guide on the platform through slidably passes, and screwmeans for tightening as new and desire to secure by Letters Patent is:

1. In a device of the nature described, a slideway adapted, to besecured to the underside of a table top, a runner slidably mountedtherein, the said runner being provided with an elongated slot, means onthe slideway extending into the runner slot for limiting the movement ofthe said runner in the said slideway, a supporting platform pivotallymounted at the front of the runner, a pivotally mounted rod carried bythe runner spaced rearwardly of the platform, a which the rod the rod inthe guide.

2. A drafting-board holder adapted to be supported at .the underside ofa table top so that it may be slid thereunder out of view when not inuse, said holder comprising a pair of slideways adapted to be secured tothe underside of the table top in parallel spaced apart relation, arunner slidably mounted in each of the said slideways, a drafting boardsupporting frame tiltably pivoted at the forward end of the runners, aguide carried by the supporting frame, a pivotally mounted rod carriedby the runners spaced rearwardly of the platform, said rod passingslidably through the guide, and means for tightening the rod in theguide when in desired tilted position.

3. A drafting-board holder adapted to be supported at the underside of atable top so that it may be slid thereunder out of view when not in use,said holder comprising a pair of slideways adapted to be secured to theunderside of the table top in parallel spaced apart relation, a runnerslidably mounted in each of the said slideways, a drafting-boardsupporting frame tiltably pivoted at the forward end of the runners, aguide carried by the supporting frame, a pivotally mounted rod carriedby the runners spaced rearwardly of the platform, said rod passingslidably through the guide, and means for limiting the movement of therunners in the slideways.

' MARTIN emon.

